From: rick <r...@andestech.com>
Add nds32_mmc to support ftsdc010 dm flow.
Signed-off-by: rick <r...@andestech.com>
---
drivers/mmc/Kconfig | 12 +++++
drivers/mmc/Makefile | 1 +
drivers/mmc/nds32_mmc.c | 136 +++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 149 insertions(+)
create mode 100644 drivers/mmc/nds32_mmc.c
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index 0dd4443..5a30a0f 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -377,6 +377,18 @@ config GENERIC_ATMEL_MCI
the SD Memory Card Specification V2.0, the SDIO V2.0 specification
and CE-ATA V1.1.
+config MMC_NDS32
+ bool "Andestech SD/MMC controller support"
+ depends on DM_MMC && OF_CONTROL && BLK && DM_MMC_OPS && FTSDC010
+ help
+ This enables support for the Andestech SD/MMM controller, which is
+ based on Faraday IP.
+
+config FTSDC010
+ bool "Ftsdc010 SD/MMC controller Support"
+ help
+ This SD/MMC controller is present in Andestech SoCs which is based on
Faraday IP.
+
endif
config TEGRA124_MMC_DISABLE_EXT_LOOPBACK
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index a078649..08a552a 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_S3C_SDI) += s3c_sdi.o
obj-$(CONFIG_MMC_SANDBOX) += sandbox_mmc.o
obj-$(CONFIG_SH_MMCIF) += sh_mmcif.o
obj-$(CONFIG_SH_SDHI) += sh_sdhi.o
+obj-$(CONFIG_MMC_NDS32) += nds32_mmc.o
# SDHCI
obj-$(CONFIG_MMC_SDHCI) += sdhci.o
diff --git a/drivers/mmc/nds32_mmc.c b/drivers/mmc/nds32_mmc.c
new file mode 100644
index 0000000..0101ace
--- /dev/null
+++ b/drivers/mmc/nds32_mmc.c
@@ -0,0 +1,136 @@
+/*
+ * Andestech ATFSDC010 SD/MMC driver
+ *
+ * (C) Copyright 2017
+ * Rick Chen, NDS32 Software Engineering, r...@andestech.com
+
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <dt-structs.h>
+#include <errno.h>
+#include <mapmem.h>
+#include <mmc.h>
+#include <pwrseq.h>
+#include <syscon.h>
+#include <linux/err.h>
+#include <faraday/ftsdc010.h>
+#include "ftsdc010_mci.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+struct nds_mmc {
+ fdt32_t bus_width;
+ bool cap_mmc_highspeed;
+ bool cap_sd_highspeed;
+ fdt32_t clock_freq_min_max[2];
+ struct phandle_2_cell clocks[4];
+ fdt32_t fifo_depth;
+ fdt32_t reg[2];
+};
+#endif
+
+struct nds_mmc_plat {
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ struct nds_mmc dtplat;
+#endif
+ struct mmc_config cfg;
+ struct mmc mmc;
+};
+
+struct ftsdc_priv {
+ struct clk clk;
+ struct ftsdc010_chip chip;
+ int fifo_depth;
+ bool fifo_mode;
+ u32 minmax[2];
+};
+
+static int nds32_mmc_ofdata_to_platdata(struct udevice *dev)
+{
+#if !CONFIG_IS_ENABLED(OF_PLATDATA)
+ struct ftsdc_priv *priv = dev_get_priv(dev);
+ struct ftsdc010_chip *chip = &priv->chip;
+ chip->name = dev->name;
+ chip->ioaddr = (void *)dev_get_addr(dev);
+ chip->buswidth = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+ "bus-width", 4);
+ chip->priv = dev;
+ priv->fifo_depth = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+ "fifo-depth", 0);
+ priv->fifo_mode = fdtdec_get_bool(gd->fdt_blob, dev->of_offset,
+ "fifo-mode");
+ if (fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev),
+ "clock-freq-min-max", priv->minmax, 2)) {
+ int val = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
+ "max-frequency", -EINVAL);
+ if (val < 0)
+ return val;
+
+ priv->minmax[0] = 400000; /* 400 kHz */
+ priv->minmax[1] = val;
+ } else {
+ debug("%s: 'clock-freq-min-max' property was deprecated.\n",
+ __func__);
+ }
+#endif
+ chip->sclk = priv->minmax[1];
+ chip->regs = chip->ioaddr;
+ return 0;
+}
+
+static int nds32_mmc_probe(struct udevice *dev)
+{
+ struct nds_mmc_plat *plat = dev_get_platdata(dev);
+ struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+ struct ftsdc_priv *priv = dev_get_priv(dev);
+ struct ftsdc010_chip *chip = &priv->chip;
+ struct udevice *pwr_dev __maybe_unused;
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ int ret;
+ struct nds_mmc *dtplat = &plat->dtplat;
+ chip->name = dev->name;
+ chip->ioaddr = map_sysmem(dtplat->reg[0], dtplat->reg[1]);
+ chip->buswidth = dtplat->bus_width;
+ chip->priv = dev;
+ chip->dev_index = 1;
+ memcpy(priv->minmax, dtplat->clock_freq_min_max, sizeof(priv->minmax));
+ ret = clk_get_by_index_platdata(dev, 0, dtplat->clocks, &priv->clk);
+ if (ret < 0)
+ return ret;
+#endif
+ ftsdc_setup_cfg(&plat->cfg, dev->name, chip->buswidth, chip->caps,
+ priv->minmax[1] , priv->minmax[0]);
+ chip->mmc = &plat->mmc;
+ chip->mmc->priv = &priv->chip;
+ chip->mmc->dev = dev;
+ upriv->mmc = chip->mmc;
+ return ftsdc010_probe(dev);
+}
+
+static int nds32_mmc_bind(struct udevice *dev)
+{
+ struct nds_mmc_plat *plat = dev_get_platdata(dev);
+ return ftsdc010_bind(dev, &plat->mmc, &plat->cfg);
+}
+
+static const struct udevice_id nds32_mmc_ids[] = {
+ { .compatible = "andestech,atsdc010" },
+ { }
+};
+
+U_BOOT_DRIVER(nds32_mmc_drv) = {
+ .name = "nds32_mmc",
+ .id = UCLASS_MMC,
+ .of_match = nds32_mmc_ids,
+ .ofdata_to_platdata = nds32_mmc_ofdata_to_platdata,
+ .ops = &dm_ftsdc010_ops,
+ .bind = nds32_mmc_bind,
+ .probe = nds32_mmc_probe,
+ .priv_auto_alloc_size = sizeof(struct ftsdc_priv),
+ .platdata_auto_alloc_size = sizeof(struct nds_mmc_plat),
+};
--
1.7.9.5
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